JP2024082949A - Packaging Box - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a packaging box capable of keeping a storage object stored in a storage space in the storage space and smoothly carrying out work of storing the storage object.

SOLUTION: A packaging box 1 includes: a cylindrical body 11 having a side plate 26 and a side plate 28 arranged opposite to each other; a partition plate 22 arranged inside the cylindrical body 11 and facing the side plate 26 with a gap therebetween; a buffer space S1 formed between the side plate 26 and the partition plate 22; a storage space S0 formed between the side plate 28 and the partition plate 22 and storing a content Q; a buffer piece 62 extended to one end of the partition plate 22; and a guide piece 82 extended to a base end of the buffer piece 62, wherein when an opening on one end side of the cylindrical body 11 is not blocked, the guide piece 82 protrudes from the cylindrical body 11, and the buffer piece 62 rises in the storage space S0.

SELECTED DRAWING: Figure 7

COPYRIGHT: (C)2024,JPO&INPIT

Description

The present invention relates to a packaging box.

A packaging box with a cushioning function is known, as described in Patent Document 1. This packaging box has a rectangular cylindrical box body having a first side wall, a second side wall, a third side wall, and a fourth side wall, a partition wall disposed within the box body and facing the fourth side wall across a gap, and a guide piece extending from the upper end of the partition wall.

In such a packaging box, the space between the second side wall and the partition wall forms a storage space for storing the contents, and the space between the fourth side wall and the partition wall forms a buffer space for absorbing and mitigating shocks. This buffer space absorbs and mitigates shocks, thereby protecting the contents in the storage space. When storing an item in the storage space, the guide piece can be tilted toward the fourth side wall, so that the guide piece becomes a slope that connects to the storage space, making it easier to store the item in the storage space.

JP 2021-004076 A

However, the packaging box of Patent Document 1 does not have the function of keeping the contents stored in the storage space in the storage space. Therefore, there is a risk that the contents in the storage space may fly out of the storage space due to the orientation of the packaging box, the contents being pushed back, etc. As a result, the work of storing the contents cannot be carried out smoothly.

The present invention was made in consideration of these problems, and aims to provide a packaging box that keeps the contents stored in the storage space within the storage space, allowing smooth storage of the contents.

These objectives are achieved by the present invention as described below in (1) to (6).

(1) A cylindrical body having a first side panel and a second side panel arranged opposite each other;
a first partition plate disposed within the cylindrical body and facing the first side panel across a gap;
a first buffer space formed between the first side panel and the first partition panel;
a storage space formed between the second side panel and the first partition panel, for storing an item;
A buffer piece extending from one end of the first partition plate;
A guide piece is provided extending from a base end of the buffer piece,
A packaging box, characterized in that when an opening on one end side of the cylindrical body is not blocked, the guide piece protrudes from the cylindrical body and the buffer piece rises into the storage space.

(2) The packaging box according to (1) above, in which the cushioning piece is bent toward the first storage space relative to the first partition plate, so that the guide piece protrudes from the cylinder and tilts toward the first side panel, and the cushioning piece rises into the storage space.

(3) The packaging box according to (1) above, in which an opening is formed in the first partition plate, and the guide piece is disposed within the opening before the cylindrical body is assembled.

(4) The first side panel has an opening portion formed at an end portion opposite to the guide piece,
The packaging box according to (1) above, wherein the first partition plate overlaps with the opening portion in a plan view.

(5) a second partition plate disposed within the cylindrical body and facing the second side plate across a gap;
The packaging box according to (1) above, further comprising a second buffer space formed between the second side panel and the second partition panel.

(6) The second side panel has an opening portion formed at an end portion opposite to the guide piece,
The packaging box according to (5) above, wherein the second partition plate overlaps with the opening portion in a plan view.

According to this invention, by tilting the guide piece toward the first side panel, the guide piece becomes a slope that leads to the storage space. Therefore, the guide piece can guide the contents into the storage space. Furthermore, after the contents are inserted into the storage space, the cushioning piece can keep the contents within the storage space. Therefore, the packaging box can be made to smoothly accommodate the contents.

1 is a development view of a packaging box forming piece according to a first embodiment, seen from the front side. FIG. FIG. 4 is a plan view illustrating a method for assembling the packaging box forming piece. FIG. 4 is a plan view illustrating a method for assembling the packaging box forming piece. FIG. 4 is a plan view illustrating a method for assembling the packaging box forming piece. FIG. 4 is a plan view illustrating a method for assembling the packaging box forming piece. FIG. 4 is a plan view illustrating a method for assembling the packaging box forming piece. 1 is a perspective view of a packaging box formed by assembling the packaging box forming pieces. FIG. 10A to 10C are cross-sectional views for explaining a method of storing items in a packaging box. 10A to 10C are cross-sectional views for explaining a method of storing items in a packaging box. 10A to 10C are cross-sectional views for explaining a method of storing items in a packaging box. FIG. FIG. 11 is a development view of a packaging box forming piece according to a second embodiment, seen from the front side. 1 is a perspective view of a packaging box formed by assembling the packaging box forming pieces. FIG. FIG. FIG. 11 is a development view of a packaging box forming piece according to a third embodiment, as viewed from the front side. 1 is a perspective view of a packaging box formed by assembling the packaging box forming pieces. FIG.

First Embodiment
The packaging box 1 of this embodiment is formed by assembling box-body forming pieces 10 that are integrally formed by punching out a blank sheet made of paper or the like. For the sake of convenience, the folding method that makes the front surface of the box-body forming piece 10 convex is also referred to as a "normal folding", and the folding method that makes the back surface convex is also referred to as a "reverse folding". In addition, the upper side in Fig. 1 is referred to as the "top" and the lower side is referred to as the "bottom".

Figure 1 is an exploded view of box-forming piece 10 as seen from the front side. As shown in the figure, box-forming piece 10 has a glue strip 21, a partition plate 22 (first partition plate), an inner side plate 23, a partition plate 24 (second partition plate), an inner side plate 25, a side plate 26 (first side plate), a side plate 27, a side plate 28 (second side plate), and a side plate 29, which are connected along the connection direction, which is the horizontal direction of the paper. In addition, glue strip 21, partition plate 22, inner side plate 23, partition plate 24, inner side plate 25, side plate 26, side plate 27, side plate 28, and side plate 29 are each separated by fold lines 31, 32, 33, 34, 35, 36, 37, and 38 that extend vertically.

Specifically, the adhesive strip 21 and the partition plate 22 are separated by a fold line 31, the partition plate 22 and the inner side plate 23 are separated by a fold line 32, the inner side plate 23 and the partition plate 24 are separated by a fold line 33, the partition plate 24 and the inner side plate 25 are separated by a fold line 34, the inner side plate 25 and the side plate 26 are separated by a fold line 35, the side plate 26 and the side plate 27 are separated by a fold line 36, the side plate 27 and the side plate 28 are separated by a fold line 37, and the side plate 28 and the side plate 29 are separated by a fold line 38. Although not shown, the fold lines 31, 32, 33, and 34 are each composed of a fold line with perforations. This makes it easier to fold the fold lines 31, 32, 33, and 34. However, the configuration of the fold lines 31 to 38 is not particularly limited.

The side panels 26, 28 are the same width, and the side panels 27, 29 are the same width. The width of the side panels 26, 28 is greater than the width of the side panels 27, 29. However, the relationship between the width of the side panels 26, 28 and the width of the side panels 27, 29 is not limited to this. The width of the inner side panel 25 is smaller than the width of the side panels 27, 29, the width of the inner side panel 23 is smaller than the width of the inner side panel 25, and the width of the glue strip 21 is smaller than the width of the inner side panel 23.

The length of the side panels 26, 28 is approximately equal to the length of the adjacent side panels 27, 29, and there is a step at the upper and lower ends that is approximately the thickness of the blank sheet. The length of the glue strip 21, the partition panel 22, the inner side panel 23, and the partition panel 24 is smaller than the length of the side panels 26, 28, and the length of the inner side panel 25 gradually decreases from the side panel 26 toward the partition panel 24.

In addition, a break line 281 is formed at the upper end of the side panel 28. The break line 281 is U-shaped with both ends extending on the fold line 58, and the portion surrounded by the fold line 58 and the break line 281 becomes the opening portion 282. In the illustrated configuration, the opening portion 282 is trapezoidal, but the shape is not particularly limited. On the other hand, a break line 283 is formed at the lower end of the side panel 28. The break line 283 is U-shaped with both ends extending on the fold line 78, and the portion surrounded by the fold line 78 and the break line 283 becomes the opening portion 284. In the illustrated configuration, the opening portion 284 is semicircular, but the shape is not particularly limited. In addition, since the cushioning piece 62 and the guide piece 82 are located on the lower end side of the packaging box 1, the packaging box 1 is opened from the opening portion 282, and the opening portion 284 is used when disassembling the packaging box 1. Therefore, by making the shapes of the opening portions 282 and 284 different, it becomes easier to distinguish between them.

An outer lid piece 48 extends from the upper end of the side panel 28. The side panel 28 and the outer lid piece 48 are separated by a fold line 58. An outer lid piece 68 extends from the lower end of the side panel 28. The side panel 28 and the outer lid piece 68 are separated by a fold line 78. The outer lid pieces 48, 68 are each trapezoidal. However, the external shape of the outer lid pieces 48, 68 is not particularly limited.

An inner lid piece 46 extends from the upper end of the side panel 26. The side panel 26 and the inner lid piece 46 are separated by a fold line 56. An inner lid piece 66 extends from the lower end of the side panel 26. The side panel 26 and the inner lid piece 66 are separated by a fold line 76. The inner lid pieces 46, 66 are each trapezoidal and shorter in length than the outer lid pieces 48, 68. However, the outer shape of the inner lid pieces 46, 66 is not particularly limited.

Flap 47 extends from the upper end of side panel 27. Side panel 27 and flap 47 are separated by fold line 57. Flap 67 extends from the lower end of side panel 27. Side panel 27 and flap 67 are separated by fold line 77. Flap 49 extends from the upper end of side panel 29. Side panel 29 and flap 49 are separated by fold line 59. Flap 69 extends from the lower end of side panel 29. Side panel 29 and flap 69 are separated by fold line 79.

The partition plate 22 has a cushioning piece 62 extending from its lower end. The partition plate 22 and the cushioning piece 62 are separated by a fold line 72. The cushioning piece 62 is trapezoidal. However, the shape of the cushioning piece 62 is not particularly limited. The partition plate 22 has an opening 221 whose lower side is aligned with the fold line 72. A guide piece 82 is formed in the opening 221 and extends from the base (proximal end) of the cushioning piece 62. The guide piece 82 and the cushioning piece 62 are separated by a fold line 92. The guide piece 82 is trapezoidal. However, the shape of the guide piece 82 is not particularly limited. Although not shown, the fold lines 72 and 92 are each composed of a perforated fold line. This makes it easier to fold the fold lines 72 and 92.

In this way, by placing the guide piece 82 in the opening 221, the guide piece 82 is separated from the partition plate 22, and as described below, the guide piece 82 is less likely to get caught on the partition plate 22 when folding the fold line 72 in the normal direction. This makes it easier to assemble the packaging box 1. However, this is not limited to this, and for example, the opening 221 may be omitted and only a cut line for separating the guide piece 82 from the partition plate 22 may be formed.

A notch 241 is formed at the upper end of the partition plate 24. The notch 241 is arc-shaped. However, the shape of the notch 241 is not particularly limited.

The above describes the configuration of the box-forming piece 10. Next, a method of assembling the box-forming pieces 10 to form the packaging box 1 will be described. First, as shown in FIG. 2, the box-forming piece 10 is turned over and the fold line 72 is folded forward. Next, as shown in FIG. 3, the fold line 32 is folded forward at 180°, and glue B is applied to the surface of the glue strip 21. Next, as shown in FIG. 4, the fold line 34 is folded forward at 180°, and the surface of the glue strip 21 is glued to the back surface of the inner side panel 25, and glue B is applied to the surface of the inner side panel 23. Next, as shown in FIG. 5, the fold line 36 is folded forward at 180°, and the surface of the inner side panel 23 is glued to the back surface of the side panel 27, and glue B is applied to the surface of the inner side panel 25. Next, as shown in FIG. 6, the fold line 38 is folded forward at 180°, and the surface of the inner side panel 25 is glued to the back surface of the side panel 29. This causes the box-forming piece 10 to be in a folded state. However, the steps for bringing the box-forming piece 10 into a folded state are not limited to the steps described above.

Next, in a factory where the contents are stored and packaged, the fold lines 31, 32, 33, 34, 35, 36, 37, and 38 are each folded at 90° to form a rectangular cylinder 11. Next, glue is applied to the surface of the inner lid piece 46, the flaps 47 and 49 are folded at 90° along fold lines 57 and 59, the inner lid piece 46 is folded at 90° along fold line 56, the outer lid piece 48 is folded at fold line 58, and the back surface of the outer lid piece 48 is glued to the surface of the inner lid piece 46. This completes the upper lid body 13 of the packaging box 1, and the opening on the upper end side of the packaging box 1 is closed.

As shown in FIG. 7, in this state, the side panels 26, 28 face each other, and the side panels 27, 29 face each other. Also, the guide piece 82 protrudes from the cylindrical body 11. Also, the partition panel 22 (first partition panel) faces the side panel 26 (first side panel) in parallel across a gap, and the partition panel 24 (second partition panel) faces the side panel 28 (second side panel) in parallel across a gap. The space between the partition panels 22, 24 becomes the storage space S0 that stores the contents Q, the space between the partition panel 22 and the side panel 26 becomes the buffer space S1 (first buffer space) that absorbs and mitigates impacts, and the space between the partition panel 24 and the side panel 28 becomes the buffer space S2 (second buffer space) that absorbs and mitigates impacts.

Next, the contents Q are placed in the storage space S0 through the opening on the bottom side of the packaging box 1. Specifically, first, as shown in FIG. 8, the packaging box 1 is laid on its side. In this state, the restoring force of the fold line 72 naturally causes the guide piece 82 to tilt toward the inner lid piece 66 (side panel 26), and the buffer piece 62 rises up so as to protrude into the storage space S0. If the guide piece 82 does not tilt or rise up sufficiently, assistance may be provided by a machine or an operator. Next, the contents Q is slid along the guide piece 82 and inserted into the storage space S0, and then inserted beyond the buffer piece 62 all the way into it.

After the contents Q are inserted into the storage space S0, glue is applied to the surface of the inner lid piece 66, the guide piece 82 is folded 90° along the fold line 92, the flaps 67, 69 are folded 90° along the fold lines 77, 79, the inner lid piece 66 is folded 90° along the fold line 76, the outer lid piece 68 is folded along the fold line 78, and the back surface of the outer lid piece 68 is glued to the surface of the inner lid piece 66. This completes the lower lid body 14 of the packaging box 1 and closes the opening on the lower end side of the packaging box 1.

As described above, the packaging box 1 is assembled, and the packaging of the contents Q is completed. When the packaging box 1 is assembled, the buffer spaces S1 and S2 are located on both sides of the storage space S0 in which the contents Q is stored. Therefore, the buffer spaces S1 and S2 absorb and reduce the external forces applied to the packaging box 1, thereby protecting the contents Q in the storage space S0.

In this way, by tilting the guide piece 82 when storing the item Q, the guide piece 82 becomes a slope that connects to the storage space S0. This makes it easier to insert the item Q into the storage space S0. Also, by protruding the buffer piece 62 into the storage space S0, the buffer piece 62 functions as a "reverse" and the item Q inserted into the storage space S0 can be kept within the storage space S0. This makes it easier to store the item Q. In particular, in this embodiment, by folding the fold line 72 forward, the guide piece 82 can be tilted and the buffer piece 62 can be raised in one action. This makes it easier to store the item Q.

As shown in FIG. 9, even if the contents Q hits the lid 13 and bounces back toward the opening when the contents Q is inserted into the storage space S0, causing a "push back" (the force of the contents Q hitting the lid 13 and bouncing back), the contents Q hits the buffer piece 62 and is prevented from being pushed back any further, so the contents Q can be kept in the storage space S0. In particular, in this embodiment, the fold line 92 between the buffer piece 62 and the guide piece 82 is made of a perforated fold line that is easy to fold, so that the buffer piece 62 easily rises up when it comes into contact with the pushed back contents Q, and the contents Q can be more reliably prevented from climbing over the buffer piece 62.

The length of the buffer piece 62 is not particularly limited, but in this embodiment, the length of the buffer piece 62 is slightly longer than the thickness of the storage space S0 (= the width of the inner side panel 23). This causes the tip of the buffer piece 62 to come into contact with the partition plate 24, preventing it from rising any further. This allows the contents Q to be more securely retained within the storage space S0.

In the example shown in Figures 8 and 9, the contents Q climbs over the buffer piece 62, but as shown in Figure 10, the contents Q may be long and not climb over the buffer piece 62. In this case, the contents Q can be held within the storage space S0 by being pressed against the partition plate 24 by the restoring force of the buffer piece 62.

When removing the contents Q from the packaging box 1, the opening portion 282 of the side panel 28 is pressed with a finger to break the breaking line 281, and the opening portion 282 is separated from the side panel 28. Then, the finger is hooked on the inside of the lid 13 and the lid 13 is raised to open the packaging box 1.

As shown in FIG. 11, when the packaging box 1 is assembled, the opening portion 282 overlaps with the partition plate 24 in a plan view. Therefore, when the opening portion 282 is pressed with a finger to break the breaking line 281, the finger hits the partition plate 24 and does not hit the contents Q directly. Therefore, the contents Q can be protected from the opening operation. In particular, the notch 241 allows only the tip of the opening portion 282 to overlap with the partition plate 24, ensuring a path for the finger when the finger is hooked on the inside of the lid body 13. Therefore, it is possible to achieve both protection of the contents Q from the opening operation and ease of opening. Note that, in the unlikely event that the opening is performed from the opening portion 284 side, the opening portion 284 overlaps with the partition plate 24, so that the contents Q can be protected from the opening operation in the same manner.

When disassembling the packaging box 1 for disposal, the opening portion 284 is pressed with a finger to open the lid 14, and the packaging box 1 is folded thinly in the same manner as when it was folded. This allows it to be disposed of in a compact form.

Second Embodiment
The packaging box 1 according to this embodiment is similar to the packaging box 1 according to the first embodiment, except that the inner side panel 23 and the partition panel 24 are omitted, and the opening portion is formed in the side panel 26. Therefore, in the following description, the packaging box 1 according to this embodiment will be described mainly with respect to the differences from the first embodiment, and the description of the similar points will be omitted. In addition, in each drawing of this embodiment, the same reference numerals are used for the same configurations as those in the above-mentioned embodiment.

As shown in FIG. 12, the box-forming piece 10 of this embodiment has a glue strip 21, a partition plate 22 (first partition plate), an inner side plate 25, a side plate 26 (first side plate), a side plate 27, a side plate 28 (second side plate), and a side plate 29 that are connected along the connecting direction. The width of the inner side plate 25 is approximately half the width of the side plates 27 and 29. In addition, an arc-shaped notch 222 is formed in the upper end of the partition plate 22. This notch 222 performs the same function as the notch 241 formed in the partition plate 24 of the first embodiment described above.

In addition, opening portions 282 and 284 are omitted, and instead, a break line 261 is formed at the upper end of side panel 26, and the portion surrounded by fold line 56 and break line 261 becomes opening portion 262. Similarly, a break line 263 is formed at the lower end of side panel 26, and the portion surrounded by fold line 76 and break line 263 becomes opening portion 264. Note that break lines 261 and 263 and opening portions 262 and 264 have the same configuration as break lines 281 and 283 and opening portions 282 and 284, respectively.

Next, a method of assembling the box-forming pieces 10 to form the packaging box 1 will be described. First, the fold line 72 is folded backward at 180°. Next, the fold line 32 is folded forward at 180°, and glue is applied to the surface of the glue tab 21. Next, the fold line 36 is folded forward at 180°, and the surface of the glue tab 21 is glued to the back surface of the side panel 27, and glue is applied to the surface of the inner side panel 25. Next, the fold line 38 is folded forward at 180°, and the surface of the inner side panel 25 is glued to the back surface of the side panel 29. With the above steps, the box-forming pieces 10 are in a folded state. However, the steps until the box-forming pieces 10 are in a folded state are not limited to the steps described above.

As shown in FIG. 13, when the fold lines 31, 32, 35, 36, 37, and 38 are folded at 90° to form a rectangular cylinder 11, the partition plate 22 (first partition plate) faces the side plate 26 in parallel with a gap therebetween. The space between the partition plate 22 and the side plate 28 (second side plate) becomes the storage space S0 that stores the contents Q, and the space between the partition plate 22 and the side plate 26 (first side plate) becomes the buffer space S1 (first buffer space) that absorbs and mitigates impacts. With this configuration, the manufacturing cost of the packaging box 1 can be reduced compared to the first embodiment described above by the amount that the inner side plate 23 and the partition plate 24 are omitted.

In particular, in this embodiment, as described above, the width of the inner side panel 25 is approximately half the width of the side panels 27 and 29, so the partition panel 22 is located approximately in the center of the packaging box 1, and the storage space S0 and the buffer space S1 are approximately the same size. Therefore, the buffer space S1 is secured to be wide, and the buffer effect on the buffer space S1 side is enhanced.

As shown in FIG. 14, the opening portion 262 overlaps with the partition plate 22 in a plan view. Therefore, when the opening portion 262 is pressed with a finger to break the breaking line 261, the finger hits the partition plate 22 and does not hit the contents Q directly. This makes it possible to protect the contents Q from the opening operation. In particular, by forming a notch 222 in the partition plate 22, only the tip of the opening portion 262 overlaps with the partition plate 22, ensuring a path for the finger when the finger is hooked on the inside of the lid body 13. This makes it possible to achieve both protection of the contents Q from the opening operation and ease of opening.

The second embodiment as described above can also achieve the same effect as the first embodiment. In this embodiment, the partition plate 22 is located approximately in the center of the packaging box 1, but this is not limited to this, and it may be biased toward the side panel 26 as in the following third embodiment, or conversely, it may be biased toward the side panel 28. The position of the partition plate 22 can be set appropriately based on, for example, the size of the contents Q and the desired cushioning effect.

Third Embodiment
The packaging box 1 according to this embodiment is similar to the packaging box 1 according to the second embodiment, except that the arrangement of the side panels 26, 28 is reversed and the width of the inner side panel 25 is different. Therefore, in the following description, the packaging box 1 according to this embodiment will be described with a focus on the differences from the first and second embodiments, and a description of the similar points will be omitted. In addition, in each drawing of this embodiment, the same reference numerals are used for the same configurations as those in the above-mentioned embodiment.

As shown in FIG. 15, in the box-forming piece 10 of this embodiment, the positions of the side panels 26, 28 are reversed compared to the second embodiment described above. In other words, the box-forming piece 10 has a glue strip 21, a partition panel 22 (first partition panel), an inner side panel 25, a side panel 28 (second side panel), a side panel 27, a side panel 26 (first side panel), and a side panel 29 that are connected along the connecting direction. In addition, the width of the inner side panel 25 is larger than in the second embodiment described above. In other words, the width of the inner side panel 25 is larger than half the width of the side panels 27, 29.

Next, a method of assembling the box-forming pieces 10 to form the packaging box 1 will be described. First, the fold line 72 is folded 180°. Next, the fold line 32 is folded 180°, and glue is applied to the surface of the glue tab 21. Next, the fold line 36 is folded 180°, and the surface of the glue tab 21 is glued to the back surface of the side panel 27, and glue is applied to the surface of the inner side panel 25. Next, the fold line 38 is folded 180°, and the surface of the inner side panel 25 is glued to the back surface of the side panel 29. With the above steps, the box-forming pieces 10 are folded. However, the steps until the box-forming pieces 10 are folded are not limited to the steps described above.

As shown in FIG. 16, when the fold lines 31, 32, 35, 36, 37, and 38 are folded at 90° to form a rectangular cylinder 11, the partition plate 22 (first partition plate) faces the side plate 26 in parallel with a gap between them. The space between the partition plate 22 and the side plate 28 (second side plate) becomes the storage space S0 that stores the contents Q, and the space between the partition plate 22 and the side plate 26 (first side plate) becomes the buffer space S1 (first buffer space) that absorbs and mitigates impacts.

As mentioned above, in this embodiment, the width of the inner side panel 25 is greater than half the width of the side panels 27 and 29, so the partition panel 22 is biased toward the side panel 26, and the storage space S0 can be made larger than in the second embodiment described above.

The third embodiment described above can achieve the same effects as the first embodiment described above.

The packaging box of this invention is not limited to the above-described embodiment, and the size of the box, the material, the shape of each component, etc. can be changed as appropriate. The above-described embodiments can also be combined as appropriate. In the above-described embodiment, each part is joined by gluing, but the joining method is not particularly limited. The packaging box may also be formed by gluing together multiple blank sheets.

1 ... packaging box, 10 ... box body forming piece, 11 ... cylinder, 13 ... lid body, 14 ... lid body, 21 ... glue piece, 22 ... partition plate, 221 ... opening, 222 ... notch, 23 ... inner side panel, 24 ... partition plate, 241 ... notch, 25 ... inner side panel, 26 ... side panel, 261 ... break line, 262 ... opening portion, 263 ... break line, 264 ... opening portion, 27 ... side panel, 28 ... side panel, 281 ... break line, 282 ... opening portion, 283 ... break line, 284 ... opening portion, 29 ... side panel, 31 ... fold line, 32 ... fold line, 33 ... fold line, 3 4...fold line, 35...fold line, 36...fold line, 37...fold line, 38...fold line, 46...inner lid piece, 47...flap, 48...outer lid piece, 49...flap, 56...fold line, 57...fold line, 58...fold line, 59...fold line, 62...cushion piece, 66...inner lid piece, 67...flap, 68...outer lid piece, 69...flap, 72...fold line, 76...fold line, 77...fold line, 78...fold line, 79...fold line, 82...guiding piece, 92...fold line, B...glue, Q...content, S0...storage space, S1...cushion space, S2...cushion space

Claims (6)

A cylindrical body including a first side panel and a second side panel disposed opposite each other;
a first partition plate disposed within the cylindrical body and facing the first side panel across a gap;
a first buffer space formed between the first side panel and the first partition panel;
a storage space formed between the second side panel and the first partition panel, for storing an item;
A buffer piece extending from one end of the first partition plate;
A guide piece is provided extending from a base end of the buffer piece,
A packaging box, characterized in that when an opening on one end side of the cylindrical body is not blocked, the guide piece protrudes from the cylindrical body and the buffer piece rises into the storage space. The packaging box according to claim 1, wherein the cushioning piece is bent toward the first storage space with respect to the first partition plate, so that the guide piece protrudes from the cylinder and tilts toward the first side panel, and the cushioning piece rises up into the storage space. The packaging box according to claim 1, wherein an opening is formed in the first partition plate, and the guide piece is disposed within the opening before the cylindrical body is assembled. An opening portion is formed at an end portion of the first side panel opposite to the guide piece,
The packaging box according to claim 1 , wherein the first partition plate overlaps with the opening portion in a plan view. a second partition plate disposed within the cylindrical body and facing the second side panel across a gap;
2. The packaging box according to claim 1, further comprising a second buffer space formed between the second side panel and the second partition panel. The second side panel has an opening portion formed at an end portion opposite to the guide piece,
The packaging box according to claim 5 , wherein the second partition plate overlaps with the opening portion in a plan view.

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